Toy construction block



FIG. 1 is a top perspective view of a toy construction block, showing my new design;

FIG. 2 is a side elevational view thereof, the other side view being identical to this view;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a cross-sectional view of the toy construction block shown in FIG. 1 in a direction transversal to its main axis. 

The ornamental design for a toy construction block, as shown and described. 